Hosting
Bundled email vs Separate email hosting
Bundled email comes free with web hosting and ties your mail to that supplier; separate email hosting costs a few pounds per mailbox and survives a hosting change untouched. For a business that invoices by email, the separation is usually worth the fee.
Side by side
| Compared on | Bundled with hosting | Separate provider |
|---|---|---|
| Cost | Included | A few pounds per mailbox per month |
| Deliverability | Shared IP reputation with every site on the server | Managed reputation, generally much better |
| SPF, DKIM, DMARC | Often limited or awkward | Documented and supported |
| During a hosting outage | Email goes down with the website | Unaffected |
| Changing web host | Mailboxes must migrate too | Nothing to do |
| Storage and search | Usually basic | Generally much better |
When Bundled email is the right choice
- A handful of low-volume addresses where deliverability is not commercially critical
- The site and the mail are both temporary — a launch placeholder or a test
- Budget is genuinely at zero and the alternative is a free consumer address on your business card
When Separate email hosting is the right choice
- You send invoices, order confirmations or quotes that must not land in spam
- You expect to change web host at some point, which is most businesses
- You need shared calendars, aliases or more than trivial storage
- You want SPF, DKIM and DMARC configured properly without fighting a control panel
Why deliverability is the real argument
A shared hosting server sends mail from an IP address shared with every other account on it, including any that are spamming. Your reputation is partly theirs. Dedicated email providers manage that reputation as their product, which is most of what you are paying for.
The migration failure to avoid
Changing nameservers before recreating MX, SPF and DKIM records at the new provider. Mail stops immediately, silently, for everyone, and the symptom is customers saying they never received a reply. Export the full DNS zone first and recreate every record before switching anything.
What separation actually buys
Independence. Domain at a registrar, site at a host, mail at a mail provider, all pointed together by one DNS zone. Each is replaceable without touching the others, which is the property that matters on the day you want to leave one of them.
The verdict
For anything commercial, separate email hosting. The monthly cost is small, the deliverability difference is real, and it removes the coupling that makes changing web host feel risky when it should be routine.
If you want the full treatment
Technical SEO, in the order the problems actually block you covers this in about 4 minutes — free, ungated, written from client work.
Who wrote this comparison
Anas Bin Masud builds e-commerce sites and does technical SEO for businesses in the UK, Canada and Pakistan. Where a comparison involves something I sell, the page says so — and every comparison here has to name at least two situations where each side wins, because a comparison one option always wins is an advert with a table in it.